Lma4vtg90 Close Circuit Variable Displacement Piston Pump

• After-sales Service: Offering Technical Support
• Warranty: 10months
• Power: Hydraulic
• Application: Concrete Pump Truck
• Transport Package: Wooden Box
• Specification: A4VG125
• Model NO.: A4VTG90
• Trademark: Elephant Fluid Power
• Origin: China

Product Description

Product Description

 

Lma4vtg90 Close Circuit Variable Displacement Piston Pump

 

Elephant Fluid Power provide Piston hydraulic pumps for construction equipments.

LMA4VTG replace Rexroth A4VTG

Sunny A4VTG90 Rexroth Hydraulic piston Pump

A4VTG90 close circuit variable displacement piston pumps

 

 

The inner donkey pump of this pump can oil and control oil source, the inlet/outlet of this pump can connect with two check relief valves which is inside of pump ,and it ensures system never overload , operated directional stably , no concussion , with maximum displacement adjustable system, this pump applied to drive mixing cylinder of concrete transport truck and closed circuit hydraulic system widely.

 

 

 

Specifications: 

 

- High pressure pump for the drum drive in mobile concrete mixers

- Size 5 … 90

- Nominal pressure 400 bar

- Maximum pressure 450 bar

- Closed circuit

 

Table of values

Size				71	90
Displacement geometric, per revolution		Vg max	cm³	71	90
Nominal pressure		pnom	bar	400	400
Maximum pressure		pmax	bar	450	450
Maximum speed	at Vg max	nnom	rpm	3300	3050
Flow	at Vg max and nnom	qV nom	l/min	234	275
Power	at qV nom and Δpnom	P	kW	156	183
Torque	at Vg max and Δpnom	M	Nm	452	573
Weight (approx.)		m	kg	51	53

 

 

 

Size				71	90
Displacement geometric, per revolution		Vg max	cm³	71	90
Nominal pressure		pnom	bar	400	400
Maximum pressure		pmax	bar	450	450
Maximum speed	at Vg max	nnom	rpm	3300	3050
Flow	at Vg max and nnom	qV nom	l/min	234	275
Power	at qV nom and Δpnom	P	kW	156	183
Torque	at Vg max and Δpnom	M	Nm	452	573
Weight (approx.)		m	kg	51	53

 

 

 

Features:

 

- Swashplate design Axial variable plunger pump for hydrostatic transmission in a closed circuit.
- The flow is proportional to the drive speed and displacement.
- As the swash plate angle increases from zero to its maximum value, the flow increases proportionally.
- When the swash plate passes through the neutral position, the hydraulic oil flow direction changes smoothly.
- Two pressure relief valves are fitted to the high pressure port to prevent overloading of the hydrostatic drive (pump and motor).
- The high pressure relief valve can also be used as a charge check valve.
- Built-in charge pump rushes current oil pump and controls variable use.

- Optional with coupling flange for direct cardan shaft drive

- Integrated boost pump for boost and pilot oil supply

- Flow direction changes smoothly when the swashplate is moved through the neutral position

- High-pressure relief valves with integrated boost function

- Boost-pressure relief valve

- Through drive for mounting of secondary pumps

- Swashplate design


Company info: 
Elephant Fluid Power has in stock every size Rexroth hydrostatic drive from the 55cc to the 250cc pump and motor parts. Need parts for any of these? We have them in stock, please call or email for a quote. Do you need Rexroth hydraulic pump repair, rebuild, or replacement? We offer Rexroth pump repair and rebuilds parts. Get in touch with us today to find out how much it will cost for repair parts.